diff options
Diffstat (limited to 'testsuite/systemtap.syscall/mmap.c')
-rw-r--r-- | testsuite/systemtap.syscall/mmap.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/testsuite/systemtap.syscall/mmap.c b/testsuite/systemtap.syscall/mmap.c new file mode 100644 index 00000000..75563854 --- /dev/null +++ b/testsuite/systemtap.syscall/mmap.c @@ -0,0 +1,53 @@ +/* COVERAGE: mmap2 munmap msync mlock mlockall munlock munlockall fstat open close */ +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> + +int main() +{ + int fd, ret; + struct stat fs; + void * r; + + /* create a file with something in it */ + fd = creat("foobar",S_IREAD|S_IWRITE); + // open ("foobar", O_WRONLY|O_CREAT|O_TRUNC, 0600) = 4 + lseek(fd, 1024, SEEK_SET); + write(fd, "abcdef", 6); + close(fd); + // close (4) = 0 + + fd = open("foobar", O_RDONLY); + // open ("foobar", O_RDONLY) = 4 + + /* stat for file size */ + ret = fstat(fd, &fs); + // fstat (4, XXXX) = 0 + + r = mmap(NULL, fs.st_size, PROT_READ, MAP_SHARED, fd, 0); + // mmap[2]* (XXXX, 1030, PROT_READ, MAP_SHARED, 4, XXXX) = XXXX + + close(fd); + + mlock(r, fs.st_size); + // mlock (XXXX, 1030) = 0 + + msync(r, fs.st_size, MS_SYNC); + // msync (XXXX, 1030, MS_SYNC) = 0 + + munlock(r, fs.st_size); + // munlock (XXXX, 1030) = 0 + + mlockall(MCL_CURRENT); + // mlockall (MCL_CURRENT) = + + munlockall(); + // munlockall () = 0 + + munmap(r, fs.st_size); + // munmap (XXXX, 1030) = 0 + + return 0; +} |